Petroleum coke calcination is one of the main processes for the production of anodes for aluminum. The purpose is to eliminate the volatiles of the raw materials and increase the density, mechanical strength, electrical conductivity and chemical stability of the raw materials. During calcination, petroleum coke changes from elemental composition to microstructure, and the physical and chemical properties of the raw materials are significantly improved after calcination.
The calcined petroleum coke is directly used for anode production, and the quality of the calcined coke will directly affect the quality of the anode carbon block. In the case where the raw coke quality is determined, the calcination quality mainly depends on the calcination temperature, so the influence of the calcination temperature on the quality of the calcined coke is significant.
1. Effect of calcination temperature on volatile matter discharge
The petroleum coke has a large amount of volatiles in the temperature range of 500 ° C ~ 700 ° C. When the temperature rises above 800 ° C, the removal rate of volatiles slows down, and the temperature rises to about 1300 ° C. The volatile content generally falls below 0.5%. The water in the coke is completely discharged, and most of the volatile matter is discharged. The relative content of the carbon is increased, the volume is contracted, and the porous internal crystal structure is formed, and the true specific gravity is large, and the electrical conductivity and mechanical strength are improved.
2. Effect of calcination temperature on structure and true density
The change of true density of petroleum coke during calcination is linear with the calcination temperature. Figure 2 shows the change of the true density of a certain petroleum coke with the calcination temperature. It can be seen that before 1000 °C, the true density increases linearly with the increase of the calcination temperature. It can be considered that in this temperature range, the true density of the coke is delayed. The increase is the result of pyrolysis and polycondensation reactions, and is also the result of a large amount of hydrogen, oxygen, nitrogen and other elements being continuously discharged, and the molecular structure of petroleum coke is rearranged.
The change in true density showed an inflection point around 1100 °C, and continued to rise after 1100 °C, mainly due to the coke structure. The true density and bulk density of petroleum coke increase with increasing temperature. As the heat treatment temperature increases, the lattice size of the petroleum coke grows and grows, and the Lc increases with temperature.
3. Effect of calcination temperature on resistivity
Determination of the electrical resistivity of the calcined coke is an important means of testing the degree of calcination. The change in powder resistivity of petroleum coke during calcination can be roughly divided into three stages:
(1) 500 ° C -800 ° C, the powder resistivity decreases linearly at this stage;
(2) 800 ° C -1000 ° C, with the increase of calcination temperature, the powder resistivity continues to decline, but the decline is small;
(3) At 100-1300 ° C, the powder resistivity still decreases slightly.
It can be seen that in the case of determining the raw material of raw petroleum coke, the calcination temperature is an important factor determining the quality of the calcined coke. After the anode production system of an aluminum plant in Northwest China was put into production, the product quality was poor. After investigation, it was considered that the calcination temperature was insufficient, which was one of the influencing factors. For this reason, the discussion and practice of high temperature calcination were carried out.
Silicon carbide (SiC) is produced by high-temperature smelting of electric furnaces such as quartz sand, petroleum coke (or coal char), and wood chips (which require the addition of salt when producing green silicon carbide). Silicon carbide is also a rare mineral in nature, Moissanite. Silicon carbide is also known as carbon silica.
Among the non-oxide high-tech refractory raw materials such as C, N and B, silicon carbide is the most widely used and economical one, and it can be called gold steel sand or refractory sand. At present, China's industrial production of silicon carbide is divided into black silicon carbide and green silicon carbide, both hexagonal crystals, specific gravity of 3.20 ~ 3.25, microhardness of 2840 ~ 3320kg / mm2.
Silicon Carbide is a kind of carbide accidentally discovered by the American Acheson in the 1891 fused diamond experiment. It was mistaken for a mixture of diamonds at that time, so it was named Emery. In 1893, Acheson came out. The method of industrial smelting of silicon carbide, which is commonly known as the Acheson furnace, has been used until now, with a carbonaceous material as the core of the resistance furnace, energized to heat the mixture of quartz SIO2 and carbon to form silicon carbide.
Due to the low natural content, silicon carbide is mostly artificial. The common method is to mix quartz sand with coke, use the silica and petroleum coke, add salt and wood chips, put it into an electric furnace, heat it to a high temperature of about 2000 °C, and obtain silicon carbide powder after various chemical processes. .
What is a recarburizer? A recarburizer is an carbon additive for steel & iron casting. In the production of steel, it not only reduces the use of pig iron, but also increases the amount of steel scrap. The recarburizer is an essential carbon raw material for the production of high-quality steel. At the same time, in gray cast iron and ductile iron, the recarburizer also plays a very good role in carbon addition.
What are the advantages of using a recarburizer for steel & iron casting? Everyone knows that when steel is manufactured, castings are prone to various problems. This is not only a waste of financial resources, but also loss of human resources, and finally a waste of resources.
The recarburizing agent is used in casting, which can greatly increase the amount of steel scrap, reduce the use of pig iron or even eliminate the use of pig iron, and greatly reduce the production cost.
The recarburizers are mainly come from coal and petroleum coke. Most of the recarburizers are petroleum coke, and are suitable for electric furnace melting, and a small part of the reheating agent with a particularly fast absorption rate is used for the cupola.
In the feeding mode of electric furnace smelting, the recarburizing agent should be placed together with the charging materials such as scrap steel. The addition of small doses can be added to the surface of the molten iron, but it is necessary to avoid feeding large quantities into the water to prevent excessive oxidation and carbonation. The effect is not obvious and the carbon content of the casting is insufficient.
The amount of recarburizer added depends on the ratio of other raw materials and the carbon content. Different types of castings can be selected according to the needs of different types of recarburizers. Petroleum coke recarburizer can reduce the amount of pig iron. The amount of impurities, the choice of recarburizers can reduce the cost of living from that. For this reason, most manufacturers use petroleum coke recarburizers to reduce production costs.
What is petroleum coke? Petroleum coke is a product obtained by separating crude oil from heavy oil by distillation and then thermally cracking the heavy oil. From the appearance, coke is a black block (or granule) of irregular shape and size. ), with metallic luster, coke particles have a porous structure, the main elemental composition is carbon, and contains less impurities than coal.
Petroleum coke can be used in the industries of graphite, smelting and chemical industry depending on its quality. Low-sulfur, high-quality cooked coke, such as needle coke, is mainly used to manufacture ultra-high-power graphite electrodes and some special carbon products. In the steel-making industry, needle coke is an important material for developing new technologies for electric steelmaking. Medium sulfur, ordinary cooked coke, used in large quantities for aluminum smelting. High sulfur and ordinary coke are used in chemical production, such as the manufacture of calcium carbide, silicon carbide, etc., as well as fuel for metal casting.
Most of the petroleum coke produced in China is low-sulfur coke, which is mainly used for aluminum smelting and graphite production. It is mainly used for the production of carbon products, such as graphite electrodes and anode arcs, for steel making, non-ferrous metals, and aluminum smelting; for the production of carbonized silicon products, such as various grinding wheels, sand sheets, sandpaper, etc.; Production of synthetic fibers, acetylene and other products can also be used as fuel, but when used as fuel, it needs to be crushed by a graded impact mill for superfine pulverization. It can be burned after making coke powder through JZC-1250 equipment, using coke powder as fuel. Mainly some glass factories, coal water slurry plants, etc.
Another use of petroleum coke is to produce higher quality carbon materials after calcination. For example, 3.0% of high sulfur calcined coke after calcination can be used as prebaked anode for aluminum, and low sulfur calcined petroleum coke can be used as recarburizer. It is a low-demand use such as gray cast iron. After deep processing of petroleum coke, graphitized petroleum coke can be obtained. It is a high-quality carbon material and can be used as a recarburizer.
On Thursday (November 15), the petroleum coke market remained stable for a short period of time. The calcined coke recarburizer was still trading, the anode material and the graphitization coke demand were good, and the aluminum calcined coke was unsatisfactory.
The three major groups of petroleum coke market:
In terms of Sinopec, the trading performance of the petroleum coke market was stable today. The downstream aluminum spot price of the Yangtze River was below the fourteenth consecutive month. In the winter, most aluminum companies have higher cost and no profit margin due to the price of electricity. Some aluminum enterprises in Qinghai have begun to cut production. The market for raw petroleum coke and calcined coke is a negative factor. Most of Sinopec's refineries have recently shipped well, and there is no pressure on inventory. In the case of CNPC and CNOOC, the petroleum coke market in the northwest region still has no pressure and good demand. The petroleum coke market in Northeast China has performed steadily. The downstream calcined coke recarburizer is still trading. The demand for anode materials and graphitization coke is good. Short-term coke prices will also be stable.
Refining petroleum coke:
Today, the refinery of petroleum coke shipments is still stable. Petrochemicals are about to start with a set of 1 million tons/year coking. Today, the price of coke is down by 20 yuan/ton. The price of coke in the first two days has risen too fast, and today it has fallen by 100 yuan/ Tons; petrochemical petroleum coke content decreased to less than 1.0%, today's latest offer 2150 yuan / ton; in addition, petrochemical petroleum coke began to take off today, sulfur content of 2.0%, pricing 1,800 yuan / ton. Overall, the refinery of petroleum coke shipments has slowed slightly.
Calcined coke market:
Shandong Industry and Trade recently produced all the raw materials for calcined coke, and the calcined coke content of new materials was reduced to 2.5%. Recently, domestic aluminum calcined coke shipments are still poor.
20181104 This week, the mainstream of petroleum coke market is stable, the support of the downstream market is limited, all enterprises are purchasing on demand, and the trading of petroleum coke market has slowed down. In detail, the price of petroleum coke in Sinopec's refinery was stable this week, and only some high-sulfur coke prices fluctuated slightly.
Shipments along the Yangtze River this week were large, mainly for the delivery before the Shanghai Expo. The individual ports along the Yangtze River stopped operations on November 2-11, and the prices of other varieties were temporarily stabilized. Formosa Plastics Coke is about to start tendering in December, and there are more negative factors in the near future. In the early period, high inventory, southern metal silicon will enter the off-season, and some common downstream refinery petroleum coke prices are relatively low, the external disk high sulfur coke price fell, the RMB exchange rate continued. Falling, there is still a slight risk of falling under current prices.
Prebaked anode: This week, the mainstream price of China's prebaked anode market has stabilized. Production: Shandong enterprises produce normal production, and ultra-low emission in autumn and winter can not limit production; Henan Zhengzhou area requires carbon enterprises to reduce 50% of all pollution sources, mainly controlling carbon emissions; in addition to individual enterprises, Hebei carbon enterprises Most of them meet the standard A category and are not restricted. Market outlook: raw material petroleum coke, coal bitumen this week, the overall price is stable, the price of individual enterprises is lowered, the support of cost side is limited; the heating season is approaching, the market supply may increase, but the growth rate is limited, some enterprises have maintained half of the work; downstream electrolysis The aluminum market fell below the fourth level, and the operating pressure of the company was relatively high. It was not excluded that the company actively reduced production in the later period and affected the consumption of the anode market. In general, most municipal policies are not yet clear, so due to multi-faceted factors, the price of prebaked anodes may fluctuate and stabilize in the short term.
Metal silicon: This week, the metal silicon market performance is weak and stable, and the price of low-grade metallurgical grade metal silicon market has dropped slightly. The price of oxygen metallurgical grade silicon metal ports in the northern region dropped by 100-200 yuan/ton, while the market for non-oxygen 553# metal silicon was relatively light. The markets in various regions were light and the orders were few. Previously, the price strategy adopted by the manufacturers to deal with the shutdown during the dry season has not been applied. Some enterprises in Sichuan and Chongqing have already lowered the price of non-oxygen 553# metal silicon by a hundred yuan. The high-grade metallurgical grade metal silicon market is generally stable. Recently, the high-grade metal silicon output is low. The planned production of silicon enterprises remains on the sidelines. However, due to weak demand, prices are still not decreasing. The chemical grade 421# metal silicon market has a large gap. Due to raw material problems in Sichuan, the output of quality products is less, but the demand for long-term fixed customers is more, and there is a shortage of supply. However, the production of 421# metal silicon in Yunnan and other places in Xinjiang is relatively large, resulting in a sufficient spot of 421# metal silicon in the overall market. On the whole, in November, chemical companies all over the country had maintenance plans, and the demand for metal 421 in the later period was weak.
Steel: This week, domestic steel prices are dominated by high-level consolidation. Leading steel mills have a strong willingness to price and boost market confidence. Social stocks continued to decline, and the decline was obvious. The environmental protection and production restriction policies were strict and the steel prices were supported. However, due to factors such as tight capital at the end of the month, the transaction was relatively light. It is expected that short-term domestic steel prices will likely rise and fall.
Cement: This week, the national cement market price has blossomed everywhere, and the price in the southern market has been singing all the way. On the 31st, the price of clinker in the Yangtze River Delta region in China rose sharply by 50 yuan/ton, driving the price of cement in the surrounding areas of Zhejiang and Jiangsu to continue to rise. During the week, Jiangxi, Shanghai and Shandong all had different price increases. The cement market in Central and South China was stable. There has been a rise, and the Guangdong region has once again gained a round. The two lakes market is still showing signs of rising. The price changes in Henan are frequent and the offer is chaotic. In the southwest Sichuan-Chongqing region, the price increase was discounted, the market in North China was stable, the prices in Tianjin and Hebei increased, and the prices in the northwest of Shaanxi Province were higher than those in Shaanxi, and the rest were stable. Affected by temperature, demand is gradually declining.
20181019 This week, the mainstream price of China's Recarburizer market is stable, the low-grade Recarburizer market is generally trading, the company's inventory is high, and the medium and high Recarburizer market is better. The heating season is just around the corner, the downstream steel mill's production restriction policy is clear, the company's operating rate is low, and the receiving sentiment is relatively dull. The Rebondurizer market price is generally stable and the possibility of deposit and loss is high. The prices of raw materials in the medium and high-grade Recarburizer market were generally raised after the holiday, and the cost pressure of production enterprises increased. However, due to the limited acceptance of the downstream market, the company's quotation has not been raised.
At present, the main materials of Recarburizer are coal and petroleum coke. The petroleum coke is divided into ordinary calcined Recarburizer and graphitized Recarburizer because of the degree of calcination. After years of tempering in the market, the petroleum coke Recarburizer has gradually replaced the market position of coal-based Recarburizer, and the shipment volume is relatively high.
This week, the mainstream price of China's general calcined Recarburizer market remained stable, and the overall market shipments were generally due to the general consumption of downstream steel mills, and the demand was relatively light. Most of the recalcinated Recarburizer manufacturers are electric calcined anthracite enterprises, self-produced screening, and the environmental protection facilities of the local enterprises in the main producing area are undergoing the inspection and acceptance of environmental protection facilities. If the enterprises fail to meet the standards or restrict production, the market starts will be limited. The production of enterprises in North China is normal, but the reaction starts low, the market is generally trading, and the enterprises have inventory.
Downstream: China's construction steel prices are trading strongly this week. Recently, in the environmentally-friendly production and the leading regions, the stock market digested and enlarged, coupled with the decrease in the shipments of the leading steel mills, the stronger willingness to price, and the support of the construction steel market continued to rise. It is understood that the Ministry of Housing and Urban-Rural Development said that all localities should take effective measures to speed up the progress of construction, increase the construction of supporting infrastructure for sheds, and the terminal demand is still acceptable. However, as the price gradually increases, the terminal transaction will gradually decrease, and the market risk preference will be lower. The high price of the willingness to accept is relatively limited, which is not conducive to the sharp rise in prices. Coupled with the recent snail and steel billet red and green intertwined, resulting in a turbulent mentality in the building materials market, traders are cautious, and the atmosphere is strong. Market outlook: It is expected that the short-term building materials market will fluctuate and strengthen, with a range of 50 yuan/ton.
Calcined Petroleum Coke recarburizer:
This week, the price of China's calcined coke Recarburizer is stable, the raw material price is high, and the production cost of the enterprise is high. However, in view of the environmental impact of the downstream enterprises, the low-level operation, the demand for Recarburizer is relatively stable, the market is generally trading, the late heating season is coming, the calcined coke Prices may fluctuate due to limited production, etc., affecting Recarburizer shipments, or will benefit other quality Recarburizer.
Medium and high sulfur calcined coke: This week, the medium and high sulfur calcined coke market was generally trading, the shipment was stable, the market was slightly weak, and the price of the coke was not adjusted. In terms of production, the production load of Zhaoxing carbon is increasing, and individual enterprises in Shandong Guangrao are not expected to reduce production. It is understood that the impact of this winter's limited production policy on calcined coke enterprises will be less than expected. A new carbon-fired enterprise in Shandong is expected to ignite four new calciners at the end of this month, and the monthly output is expected to increase by about 20,000 tons. There is no inventory backlog, and there is no pressure on the trading market of calcined coke. However, at the same time, after the production load of the enterprise is increased, coupled with the recent poor performance of the aluminum market, the price of domestic medium and high sulfur calcined coke at the end of the month is still at a downward risk, and the estimated range is about 50 yuan/ton. .
Graphitized petroleum coke Recarburizer:
This week, the price of China's graphitized petroleum coke Recarburizer is stable. The price of raw material petroleum coke is stable and the price is high. The pressure on the production cost of Recarburizer is increasing. Among them, the production of individual enterprises in Henan and Xinjiang was suspended due to environmental protection, and the operating rate fell. In addition, the graphitization enterprises of anode materials in the market will start construction in the second half of the year, and the output will be released. Enterprises in Jiangsu Province have normal production, good shipments and smooth exports.
Late prediction: The general market for recarburization of Recarburizer is currently trading, and the stock of enterprises is higher, but the price of raw materials for electric calcination may be lower due to limited production, which stimulates the price of Recarburizer; the price of calcined coke and graphitized Recarburizer is driven by cost. The pressure is increasing, and the price push is stronger.
20181014 This week, the mainstream price of the prebaked anode market rose, which is good for industry confidence. The fourth quarter has begun, the heating season is just around the corner, the Beijing-Tianjin-Hebei region policy has been released, and ultra-low emissions can not be restricted, and local policies are being released. It is reported that some enterprises in Henan have passed the ultra-low acceptance test, and the Hebei region has limited production. India’s import of carbon-grade petroleum coke bans and sets quotas, which will benefit anode exports.
Start-up situation: start-up situation: Hebei area: Hebei Hongke, Hebei Quxin carbon conventional, normal production, Zhongdong plans to switch production, Xinfeng raw blocks are all for Qinghai and peak, Hebei heating season adopts "step A\B \C" limited production; enterprises in Shanxi Province started to work weakly, Danyuan roasting is in the open, do some electrodes, Guan Aluminum plans to transform the enterprise, plans to do electrode paste or roasting electrode, has not been determined;
The production of enterprises in Jiangsu area is normal, and the construction started higher than that in the second quarter. “The autumn and winter plan of the Yangtze River Delta has been released”, and production in Jiangsu will be limited during the heating season.
Hubei Province has strict inspections, Hubei Tailai carbon production has been reduced, and environmental protection equipment has been transformed. Enterprises have a small amount of stocks; Guizhou area, Chinalco Guizhou carbon plant relocated, no output; Henan, some enterprises have reduced production, Boda electric porcelain processing electrodes, roasting A small amount, Huihao environmental protection equipment renovation, August shutdown maintenance, Henan Yuhui, Zhengzhou Great Wall discontinued production, Gongyi area, Jinyu started about 50%, Zhulin Saxin external processing carbon block, some enterprises have been low acceptance. In the southwestern region, some enterprises have reduced production; in the normal production of enterprises in Shandong, the output of individual enterprises has fluctuated. The carbon blocks of the supporting anodes are upgraded by environmental protection reasons or the electrolytic cell is overhauled.
1. The notice of the implementation plan for the implementation of the peak production regulation of industrial enterprises in the heating period of 2018-2019 during the reporting period of 2018-2019 indicates that the carbon enterprises used for electrolytic aluminum are limited to 50%. The production line is stable and achieves ultra-low emission (particles, sulfur dioxide, and nitrogen oxides are not higher than 10, 35, 50 mg/m3 respectively), and the production is limited to 50% in the non-ferrous recycling industry. Production line meter.
2. The Action Plan for Comprehensive Management of Air Pollution in the Autumn and Winter of 2018-2019 in Beijing, Tianjin and Hebei and the Surrounding Areas has been released.
3, "The Yangtze River Delta autumn and winter air pollution tough battle to seek comments released", involving Jiangsu, Hubei.
Petroleum coke for prebaked anode: This week, the price of petroleum coke market rose first and then stabilized. During the National Day, some refineries executed pre-holiday orders, and the inventory performance after the holiday was low. The coke price was obviously pushed up, but the downstream market procurement operation was late this week. The performance was general. At the same time, the petroleum coke index of some enterprises was changed, the market low sulfur coke resources decreased, and the medium sulfur coke resources increased, so the market price gradually stabilized.
Coal tar pitch: After the National Day holiday, the coal tar pitch market has risen sharply, and the revised asphalt offer has risen sharply, but as of this Thursday, the high level is still playing. Medium-temperature asphalt supply reduction in the short-term, downstream demand is still acceptable, low-end delisting, high breakthrough is limited.
According to statistics, in August 2018, the total output of China's prebaked anodes was 1,560,500 tons, of which 740,500 tons of commercial anodes and 802,000 tons of anodes were increased by 16,900 tons from August, an increase of 1.09%. The output in September increased slightly compared with the output in August. The main reason was that the output of individual anode enterprises increased, and the output of commercial anode enterprises increased and decreased, which was the same as last month.
Production cuts: Dengdian Group Aluminum Alloy Co., Ltd. and Henan Yongdeng Aluminum (Yangcheng) have slightly reduced production due to power supply problems. Gansu Zhongrui Aluminum has reduced production problems. Henan Zhongfu and Linfeng Aluminium Electric actively reduced production due to losses. Shanxi Zhaofeng Aluminium Power Environmental Inspection, shut down 65 units, involving a production capacity of 40,000 tons. Zouping Aluminum has all stopped production, involving a production capacity of 140,000 tons. Chinalco Liancheng reduced production by about 160,000 tons due to electricity price problems. Henan Shenhuo reduced production by about 110,000 tons. Xinjiang Oriental hopes to reduce production to 800,000 tons due to the indicator problem. Shaanxi Tongchuan Aluminum Industry Co., Ltd. all stopped, and the index was transferred to Meixin. Chinalco Guizhou's 150,000 tons has all been reduced. Huo Coal Tongshun Aluminum Industry is expected to implement around 2020 due to losses, intra-group replacement demand, or production cuts but not explicitly reduced production by 115,000 tons.
Resumption of production: Jiaozuo Wanfang Aluminum has basically completed the resumption of production and partial rotation of the trough. In addition to the wheel repair, Linfeng Aluminium Electric has basically resumed production. Some of the tanks in the Longquan Aluminum Industry of Yugang were overhauled, and the rest of the production was completed. The current production capacity is 600,000 tons. Henan Zhongfu resumed production and the remaining rounds were repaired. Henan Wanji Aluminum completed its resumption of production in mid-May and now has a production capacity of 570,000 tons. Henan Yongdeng Aluminum Co., Ltd. (Yangcheng) Branch completed the resumption of production.
In terms of new production: 125,000 tons of the fourth section of Guizhou Huaren Aluminum has been completed. Inner Mongolia Huayun New Materials on the 21st, the remaining 88 sets of the second plant began to start, and is currently completed. Shaanxi Meixin began commissioning equipment on September 15 and is expected to start production in November. Shanxi Chinalco China Resources 1st and 8th District has a current operating capacity of 80,000 tons and is temporarily stable. It is expected to continue production in late October. Yingkou Xintai Aluminum started production on September 5th. Yun Aluminum Haixin Aluminum Co., Ltd. put into operation 100,000 tons. Xinhengfeng Energy started production in August 2018 and plans to start production of 200,000 tons. Guizhou Xingren climbed the high, and the 122.5 million tons of electricity in the first phase was suspended again. It is expected to continue in early November. Gansu Zhongrui Aluminum Industry Phase I has completed 100,000 tons of production, and the second phase has not yet started production. The current funding problem has been reduced. Guangxi Hualei new materials four stages of 100,000 tons due to unit maintenance delayed production until October. Mengtai Aluminum is expected to complete production of 250,000 tons within the year. Inner Mongolia Chuangyuan Metal, with a current operating capacity of 90,000 tons, is now temporarily put into operation due to the price of electricity. Guangxi Suyuan's second series of 100,000 tons is expected to start production at the end of October. A series of 100,000 tons of Guangxi Debao 100 mines has been completed. A series of 100,000 tons of aluminum in the Tianlin 100 mine in Guangxi is currently slowly put into operation. Guangxi Laibin Yinhai Aluminum has a production capacity of 500,000 tons. Heqing Yixin Aluminum Co., Ltd. is expected to start production in October 2018.
Market outlook: The price of raw petroleum coke is generally raised after the holiday, the price of coal tar is pushing up, the price is increasing, the pressure of prebaked anode is increasing; the stocking of downstream electrolytic aluminum market is still going on, which is good for anode consumption, but the price of aluminum has been Low-level operation, aluminum enterprises almost all losses, enterprises may take the initiative to reduce production, the pace of new investment, resumption of production slowed down, negative anode consumption. Therefore, the short-term prebaked anode market price has limited support and is stable in the short term.
Monday (October 8th) today is the first working day after the National Day. According to the understanding of the price of petroleum coke during the National Day, the price remains mainly stable, and the price after the holiday has been adjusted. The price of calcined petroleum coke is slightly raised, and the coke is burnt. The price of recarburizer is temporarily unchanged.
The three major groups of petroleum coke market:
Sinopec, during the National Day, Sinopec's Tahe and Maoming Petrochemical prices have been adjusted, and today, Tahe coke prices continue to increase, it is reported that Tahe petroleum coke cumulative increase of 60 yuan / ton, Maoming petrochemical coke price before the holiday cut significantly 120 yuan / Tons, mainly due to the high price in the previous period, coupled with the price adjustment of the National Day holiday, the current oil coke shipments of the factory are low. The price of petroleum coke in Yanshan Petrochemical Company of North China was lowered by RMB 60/ton today. The factory shipped poorly during the festival and there were fewer transport vehicles. Luoyang Petrochemical's shipment is still acceptable, and the price of Dongming is raised to support its shipment. The price of Tianjin Petrochemical Railway Transportation was raised by RMB 50/ton. The quality of petroleum coke in Anqing Petrochemical was slightly lower due to higher prices in the previous period. The Sinochem Quanzhou coking unit has been shut down during the National Day and there is currently no inventory in the plant.
In the case of PetroChina and CNOOC, Daqing and Fushun Petrochemical in Northeast China began to sell their petroleum coke in October, and the shipment is relatively stable. Liaoyang Petrochemical's price is lowered by 50 yuan/ton today, and the coking unit of the plant is expected to be shut down for one year from mid-October. The commencement of the Liaohe petrochemical coking unit has been postponed and it is expected that products will be available in the middle. The petrochemical coking unit in the northwest region started construction at the end of September. At present, it has been out of focus, and the price is raised by 50 yuan/ton. Wu Petrochemical and Dushanzi Petrochemical petroleum coke shipped well, among which the petrochemical index of Wujiang Petrochemical continued to improve in the near future. The sulfur content was all within 1.0%, and the price of Yumen Petrochemical Petroleum Coke was raised by RMB 50/ton from 10.1.
Refining petroleum coke:
As the first working day after the National Day, the price of refinery petroleum coke has risen in an all-round way, with a concentration of 30-130 yuan/ton. Before the holiday, due to the high cost performance of the refining petroleum coke, the refineries have signed a large number of contracts. At present, most of the refineries have no inventory and the shipments are smooth. In terms of refinery dynamics, Hengbang Petrochemical Co., Ltd. resumed production and still produces projectile coke; Zhenghe Petrochemical Coking Unit was shut down for maintenance on September 30, and petroleum coke has no inventory; Longhai Petrochemical and Qirun Chemical Coking have not yet started.
Calcined petroleum coke recarburizer market:
Today, the market for calcined coke recarburizers is stable, and corporate prices have not been adjusted. During the National Day of PetroChina Liaohe Petroleum Exploration Bureau Co., Ltd., the two rotary kiln have been started normally. However, since the refinery coking unit has not been out of focus, the plant is not yet fully loaded. At present, the plant is burning coke recarburizer. The price is maintained before the National Day, and the shipment is acceptable.
This week, the mainstream price of China's prebaked anode market was running smoothly. The heating season is approaching, and the environmental protection policy and the limited production ratio are the focus of the industry. At present, the “2+26 and surrounding areas” autumn and winter tackling schemes have been released, and specific implementation measures will be released one after another. It is reported that enterprises in Henan Province are actively rectifying and reforming, and will continue to accept and accept in October to determine the ratio of production restrictions; Zibo area will not limit production.
Four enterprises in Hebei, Hebei Hongke, Hebei Quxin carbon, regular production, Zhongdong plans to switch production, Xinfengsheng block is all for Qinghai and peak, Hebei area for the national three, the country five car transport restrictions, autumn The winter tackling plan has been released; the Shanxi region is weakly started, Danyuan roasting is being opened, some electrodes are being used, and the Guanlan plan enterprise is undergoing transformation, and the electrode paste or roasting electrode is planned to be determined. The inspection in Hubei is strict, and the production of Hubei Tailai carbon is reduced. In the renovation of environmental protection equipment, enterprises have a small amount of inventory; in Guizhou, Chinalco Guizhou carbon plant relocated, no output; in Henan, some enterprises have reduced production, Boda electric porcelain processing electrode, roasting a small amount, Huihao environmental protection equipment renovation, August Shutdown maintenance, Henan Yuhui, Zhengzhou Great Wall discontinued; Gongyi area, Jinyu started about 50%, bamboo forest Sasin outside processing carbon block. In the southwestern part of the country, some enterprises have reduced production, and the carbon blocks of individual anodes are upgraded due to environmental protection reasons or the electrolytic cell is overhauled.
Petroleum coke: petroleum coke for prebaked anode: This week, the price of petroleum coke market began to bottom out, mainly reflected in local refineries. Sinopec's refinery's petroleum coke remained stable this week, with a slight downward adjustment. PetroChina's refinery's coke price remained stable. More, CNOOC this week, two refineries started working. In detail, Sinopec's refinery's petroleum coke is only 20-40 yuan/ton in the two refineries of Gaoqiao and Guangzhou, and the price of Lanzhou petrochemical in the northwest of CNPC is raised by 60 yuan/ton. CNOOC Binzhou Zhonghai and Zhoushan Petrochemical re-pricing this week. The price has dropped before the stoppage. In terms of refining, the price of this week has risen and fallen by 50-100 yuan/ton.
This week, the coal tar pitch market has been pushed up, and it has been actively promoted. The atmosphere of negotiations has been strong, and attention has been paid to the establishment of purchasing prices for key enterprises. The cost pressure of coal tar pitch manufacturers is obvious. In October, the equipment maintenance plan increased, and the increase was more confident. Late forecast: It is expected that the coal tar pitch market will go up and the increase will be a game. The raw material price is high before the holiday, and the price reduction may not be ruled out after the holiday. The supply of coal tar will be reduced in October. There are still restrictions on the terminal market.
According to statistics, in August 2018, China's total output of prebaked anodes was 1,543,600 tons, of which commercial anodes were 751,500 tons, and supporting anodes were 799,800 tons. The increase was 0.77 million tons in July, an increase of 0.5%. In August, the output increased slightly compared with the output in July. Some enterprises in the Gongyi area of Henan resumed production and the production capacity was released. The overall output increased compared with July. However, the enterprises supporting the anodes have stopped production and repaired zero production, resulting in a small increase in the overall supply of the market.
Jiaozuo Wanfang Aluminum has basically completed the resumption of production and partial tank repairs. Linfeng Aluminium, in addition to the wheel repair, the rest of the production capacity is basically resumed. Some of the long-slots in Longquan, Henan Province were overhauled, and the rest of the production was completed. The current production capacity is 600,000 tons. Henan Zhongfu began to resume production in late April, and began to resume production in late April. The resumption of production was completed and the remaining rounds were repaired. Henan Wanji Aluminum completed the resumption of production in mid-May and now has a production capacity of 570,000 tons. Henan Yongdeng Aluminum Co., Ltd. (Yangcheng) Branch completed the resumption of production.
The remaining 88 troughs of Inner Mongolia Huayun New Materials No. 2 Plant began to be launched one after another and are currently in operation. Shaanxi Meixin began commissioning equipment on September 15 and is expected to start production in November. Chinalco China Resources 1st and 8th District 125,000 tons was officially put into operation on May 19th. The current operating capacity is 80,000 tons, which is temporarily stable. It is expected to continue production in October. The 125,000 tons of network fee in the fourth section of Guizhou Huaren Aluminum Industry has been resolved, and it is expected to be completed in mid-October. Yingkou Xintai Aluminum, on September 5, new production capacity began to be put into production. Yun Aluminum Haixin Aluminum Industry Co., Ltd. started power supply in late July and is expected to start production to around 150,000 tons during the year. Baotou Xinhengfeng Energy started production in August 2018 and plans to start production of 200,000 tons. The problem of 125,000 tons of electricity in Guizhou Xingren's first stage was suspended again and is expected to continue in early November. Gansu Zhongrui Aluminum Industry Phase I has completed 100,000 tons of production, and the second phase has not yet started production. The current funding problem has been reduced. Guangxi Hualei new materials four stages of 100,000 tons due to unit maintenance delayed production until October. Mengtai Aluminum in Baotou City is expected to complete production of 250,000 tons within the year. Inner Mongolia Chuangyuan Metal Co., Ltd., with a current operating capacity of 90,000 tons, is now temporarily put into operation due to the price of electricity. Guangxi Suyuan Investment Series 100,000 tons began to continue construction, is expected to start production at the end of October, completed production within the year. A series of 100,000 tons of Guangxi Debao 100 mine started production on April 7, 2018. The current operating capacity is 65,000 tons, which is expected to be completed in October. A series of 100,000 tons of aluminum in the Tianlin Baiyuan Mine in Guangxi began production in early May 2018 and is currently in slow production. Guangxi Laibin Yinhai has completed production in early May and now has a production capacity of 500,000 tons. Heqing Yixin is expected to start production in October 2018.
The price of raw petroleum coke stopped falling, the price of coal tar pitch was stable, and the support of anode cost was stable. The enthusiasm of downstream electrolytic aluminum enterprises was not reduced, mainly for stocking in winter, which was good for anode consumption. In addition, the maintenance of individual anodes for supporting anodes To increase anode consumption, there will be a small price increase in the short-term market, which is about 100 yuan/ton. In the fourth quarter, the development will be subject to the implementation of environmental protection policies and the multi-faceted price of raw materials.